DC's first logo appeared on the April 1940 issues of its titles. The letters "DC" stood for Detective Comics, the name of Batman's flagship title. The small logo, with no background, read simply, "A DC Publication".
The November 1941 DC titles introduced an updated logo. This version was almost twice the size of the previous one, and was the first best man speeches version with a white background. The name "Superman" was added to "A DC Publication", effectively acknowledging both Superman and Batman. This logo was the first to occupy the top-left corner of the cover, where the logo has usually resided since. The company now referred to itself in its advertising as "Superman-DC".
In November 1949, the logo was modified to incorporate the company's formal name wedding shoes, National Comics Publications. This logo would also serve as the round body of Johnny DC, DC's mascot in the 1960s.
In October 1970, the circular logo was briefly retired in favor of a simple "DC" in a rectangle with the name of the title, or the star of the book; the logo on many issues of Action Comics, for example, read "DC Superman". An image of the lead character either appeared above or below the rectangle mother of the bride dresses. For books that did not have a single star, such as anthologies like House of Mystery or team series such as Justice League of America, the title and "DC" appeared in a stylized logo, such as a bat for House of Mystery. This use of characters as logos helped to establish the likenesses as trademarks, and was similar to Marvel's contemporaneous use of characters as part of its cover branding.
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DC's first logo appeared on